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  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Tropos Blue
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  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Tropos Blue
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Anaconda
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Venom
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Admiral
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Magma
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Black
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Bourbon
  • Arc'teryx - Cerium LT Hooded Down Jacket - Men's - Adriatic Blue

Arc'teryx Cerium LT Hooded Down Jacket - Men's

$378.95

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    4.5560

    60 Reviews

    Details

    Don't break down when it's cold outside.

    Cerium is the most abundant rare earth metal, decomposes slowly in cold water and rapidly in hot water. The Arc'teryx Mens' Cerium LT Hooded Down Jacket is not quite as prevalent as its namesake, but does slow your decomposition in cold weather. The combination of 850-fill European goose down and strategically placed Coreloft insulation keeps you warm whether you wear the Cerium alone or under a hardshell when you're confronted with a winter tempest most storm chasers avoid.
    Bigger numbers are fun when it comes to betting odds and down insulation. A higher fill-power down, like the 850-fill used in the Cerium, refers to how much space a single ounce of down occupies. The more space taken up by the down means more air is trapped between the fibers. Trapped air creates a barrier between warm air from your body and cold air in the environment, so you stay warm when it's cold outside. Taking this logic one step further, if one ounce of a certain down takes up more space than a different type of down, it stands to reason you'll need less of the 'bigger' down to keep you warm, thus reducing the weight of your jacket. In essence, this jacket's high down fill makes it both light and warm.
    Since down doesn't maintain its warmth when it gets wet, the folks at Arc'teryx placed synthetic insulation in the spots that are most likely to get a bit damp. Still, while Coreloft insulation does resist moisture better than down, and an ominous drizzle won't leave you a cold, soaking mess, it's best to pair this with a waterproof shell if you know the weather is coming.
    This superlight hooded jacket comes with its own stuff sack so you can easily bring it along and so your pack stays organized. The same 850-fill down fills the low-profile StormHood so your melon stays warm. (Mom was right—if you keep your head covered, you'll stay warmer.) Two zippered hand pockets hold your keys and phone, trail map and candy, or your partner's ID and lip balm.

    • Lightweight Airetica shell, 10x20D ripstop nylon
    • DWR treated
    • 850-fill European goose down in core and hood
    • Coreloft synthetic insulation, 80 and 100 g/m2
    • Trim fit, hip length
    • Low-profile StormHood
    • 9.7 ounces (M)
    • Includes stuff sack
    • Item #ARC3662

    Tech Specs

    Material
    [shell] Airetica (nylon), DWR treatment
    Insulation
    [Down Composite Mapping] 850-fill European goose down, Coreloft 80, Coreloft 100
    Fill Weight
    (down) 3.35 oz
    Fit
    trim
    Length
    hip
    Center Back Length
    26.5 in
    Hood
    yes
    Pockets
    2 zipperd hand
    Claimed Weight
    [medium] 9.7 oz
    Recommended Use
    hiking & camping, skiing & snowboarding
    Manufacturer Warranty
    limited lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    From town to summit

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Large

    First off, the navy/maroon color is great if you care about that sort of thing. It looks as good with a pair of jeans as it does with a soft shell.

    Second, oh my god warm! I was stuck in a storm high on Aconcagua for 3 days with wind chills far blow zero. I threw my hard shell over this puffy and could not believe that I never got cold when outside my tent. When I was moving on the non-storm days I wore my hard shell and would throw this over the top on breaks to keep in the warmth. The pockets a perfect for warming up the hands and the included stuff sack keeps this thing to minimal size when packed away.

    Third, as you would expect from this brand, it held up well to life on the mountain. No snags and when professionally cleaned it looked as good as the day I bought it. I am 5'11", 190 lbs and the large fits great.

    Versatile ultralight warmth

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Xl


    Got this jacket to be used as a packable layer for winter camping, hiking, and skiing in New England. I now use it all four seasons either under a hard shell or on its own. Be careful if you wear it as an outer layer because the shell is delicate.

    I went with xl so I could have layers underneath and not feel too restricted, on its own a large would fit better, but for my use the xl was a better choice.

    Amazing how small and light this jacket is. On its own with a base layer it was comfortable to around 30, but with a hard shell over and fleece underneath I was comfortable to around zero.

    Great to throw on during breaks, the summit, or at night , a bit warm for high output movement unless it's real cold.

    Have yet to get it too wet, but definitely a good move having synthetic fill on shoulders and cuffs. I understand Arcteryx going for ultralight with this jacket but I still wish they had included a draw string to keep the bottom tight, definitely loses heat out the bottom especially on windy days but I'm sure if I had gotten the large it would be less of a problem.

    Lightweight and toasty

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: XL

    Got this for my husband to wear under his waterproof shell. Loves how warm the goose down keeps him and now wears it almost daily when he's out in the early morning freeze. Low pro hood is nice, overall fantastic jacket.

    Great Winter Fav

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size

    This jacket is ultra light and does provide great warmth thanks to its built-in insulation. It also comes in a small draw-string bag.

    Down leaks, wish torso was 1-2" longe

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: medium

    I don't regret buying it because it's hard to beat its weight to warmth factor, but I have noticed that the down shifts from one side to the other side quite easily inside the baffles and that down leaks are quite common.

    I do have a longer than average torso, so I wish the torso was a couple inches longer.

    Damn near perfect

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Large

    I needed a new lightweight down jacket to replace an older model. I am 6' 1", 190lbs, and broad-shouldered...the large fits perfectly, as long as I have only one layer underneath. In that configuration, it's like being snuggled by warm, fluffy, puppies and kittens. It is a joy to wear in temps freezing and below. Above that, I find it too warm when zipped up...but I still love it enough to wear vented when the mercury rises above 32. Adding a shell on top, you are looking at seriously cold weather warmth.

    Arc'teryx Cerium LT Hooded Down Jacket

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Medium

    I've been in the market for a new puffy and lightweight coat and tried on all the different brands, Patagonia, Columbia, The North Face etc... I purchased the Arc'Teryx Cerium with the hood and couldn't be happier. It fits perfectly and keeps you very warm in the frigid months. Highly recommend buying Arc'Teryx!

    Arc'teryx Cerium LT Hooded Down Jacket

    Almost too warm

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: medium

    First things first - this is not a standalone down winter jacket. It's super thin and ultralight and is not meant to be the only thing between you and the winds of winter. But if you couple it with a windproof shell you're going to stay awfully toasty. If you have an insulated shell it's going to be almost too warm once you get your heart rate up. The fit is amazing. Its got enough room to reach around your body without exposing your skin or bunching up. You can also fit a reasonably thick sweater underneath, but even then I wouldn't recommend using with temps in the 30s. I purchased this jacket with the intent of using it for ultralight backpacking and 3 season camping and can't wait to see how it feels for a summit sunrise this spring. May update the review at that time.

    Almost too warm

    UL down jacket. Very warm for the weight

    • Familiarity: I've used it several times
    • Fit: True to size

    I needed a new down for touring and this was the best rated one I researched. I ordered a large to my specs. It seemed a bit form fitting when I got it, and I was concerned that maybe I had ordered the wrong size. But after talking to others who had it, that is the way it was designed to be a mid layer under a waterproof shell. I got to take it out after we received over 5 ft of snow out of the last storm on a really cold day. I was a bit chilly when we topped out at the summit, and putting this jacket on was like having a personal heater. I could not believe how warm this jacket was. It was much lighter in my pack too. For all the doubts I had about this jacket, it has quieted those for me. It is a great jacket, really warm, and weighs nothing in your pack. Highly recommended for backcountry touring or UL backpacking

    Great jacket!

    • Familiarity: I've used it several times
    • Fit: Runs small
    • Size Bought: XL

    I used this for all sorts of activities and I've only had it for a very short time. It held up well in the snow, rain, and overall cold. I usually wear a large with arc'teryx, but decided to go with an XL and so glad I did. This thing fits really well (45 inch chest, wide shoulders, 34 waist). I soaked this thing paragliding in the snow and it was bone dry by the time I got home. Kept me warm throughout! I was debating this and the MHW Ghost Whisperer and so glad I chose this!

    Great jacket!

    Awesome jacket

    • Familiarity: I've used it several times
    • Fit: True to size

    The jacket is light and comfortable. This is even better since its so warm! I have extremely long arms and this jackets sleeves were enough for me. This is now my go to jacket. I love it!

    Fantastic jacket

    • Familiarity: I've used it several times
    • Fit: True to size

    This jacket is great! It's very warm, especially when wearing an outer shell. Living in Salt Lake City, it has been more than enough insulation for daily use. I've worn it in ~10 degrees Fahrenheit with an outer shell and it was very warm. It fits true to size with a slight inwards taper. The jacket feels extremely light with a lot of mobility. It packs down very well into the pocket.

    Pros: Warm, light, mobile, fits well
    Cons: Not very water resistant, but then again it's not meant to be.

    Outstanding jacket for freezing temps

    This jacket is very windproof and super lofty. This down layer insulates very well but does not restrict your mobility. I took a couple good falls out on the mountain and it still kept me warm and dry. This jacket is not intended to be waterproof however, it is very durable and tough. This jacket is perfect for riding on powder or on the trail.

    Outstanding jacket for freezing temps

    Great Lightweight Down Jacket

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: X-Large

    Arc'Teryx makes truly great product. The Cerium LT is no exception. I had owned the non-hooded version and purchased the hooded version this year. The jacket is incredibly versitile working in multiple conditions and multiple uses. I typically use it for fall and early spring camping in alpine conditions, as a layer underneath my ski shell and then running around town. The temperature range is very comfortable.

    Amazing Down Beast

    • Familiarity: I've used it several times
    • Fit: True to size

    A crazy light stylish down jacket that packs down small. Insanely warm and so soft. It does fit a little slim but is great for layering or as a casual jacket in your colder alpine towns. It doesn't have the draw cord at the waste but I haven't had any issues with wind blowing up my back. Probably wouldn't be my first choice to wear snowboarding though because of this (I fall down a lot). I have been wearing this for my second winter in Idaho in temps of low 20's and felt fairly warm.

    No internal pockets but with this jacket you're pretty much paying for the weight and fill. There are cheaper options out there (even within the Arcteryx brand) with more bells and whistles, but this would be my first choice for any activity where I'm hauling gear around and need to conserve space and weight.

    Perfect fit, finally!

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium

    I'm 5'6", 155 lbs with 38-39" chest and 31" waist and this jacket fits PERFECTLY!!! After trying several other brands to include Marmot, Basin & Range, etc, and the sizing being off (Small seemed to be made for 6' tall 135 lb guys while Medium was too baggy), I finally tried this jacket and the fit is spot on. Not too long in the waist, sleeves hit right at the wrist and it fits trim without restricting movement in the armpits like the other brands. Super warm jacket that looks fantastic. My only complaint is there aren't any internal pockets but this jacket fits so well I'm willing to overlook that. More to follow on durability and construction.

    Light and Toasty

    • Familiarity: I've put it through the wringer
    • Fit: Runs small

    I have been using this jacket for two years in all seasons in the high Sierra. It is an excellent insulation layer. I usually use it at night and in the early morning when temperatures are near or below freezing and I'm not active.
    I want to emphasize that this is an insulation layer and must work as part of a layer system. A few other reviewers complain about some features in a way that makes me believe they are looking for a single article of clothing to keep them warm and dry in all conditions, this is not it. When combined with a shell layer and a base layer(s) this jacket will keep you toasty in wind and snow.
    The Cerium LT has consistently been too warm for wearing while hiking, climbing, or skiing. The jacket is very lightweight and packs down very small and is excellent for ultralight back packing.

    Arc'teryx does it again!

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium

    This jacket is amazing! You can wear it in such a wide temperature range and still feel very comfortable. I have worn it on warmer nights (Mid 50s) and cooler nights (Mid 20s) so far and it has been great either way. It is definitely a slim fit. I would say if you are using it for anything other than a base layer to seriously consider sizing up.

    Does anyone know which is warmer between this jacket and the Patagonia Down Sweater Hoody? I realize warmth is somewhat subjective, but I'm just curious if there is any measurable difference between the two aside from weight.

    The reviewers at outdoor gear lab said that the Patagonia down sweater is slightly warmer, and they're pretty detailed in their reviews. I'd check em out to see which one is best for you. http://www.outdoorgearlab.com/Down-Jacket-Reviews/Patagonia-Down-Sweater-Hoody

    Cerium LT is 850 down fill at 275g total, and Down Hoody is 800 down fill at 428g total, 56% heavier. Despite a slightly less fill ratio, the Patagonia will have significantly more fill insulation and will keep you a notch warmer. These type of jackets don't breath well unless they have some sort of hybrid breathable panels, so I always say get the warmest you can comfortably carry, which would be the Patagonia. Only reason to get the Arc'teryx would be if you'll be carrying it frequently in a pack and need to absolutely pinch grams.



    Which by the way, Backcountry.com it's time you list Grams on all your products...the entire world and most manufactures use only Grams, yet you still don't have it...

    I'm not sure Snorske has their info correct........this jacket claims total overall weight of 9.7 oz and stats 3.35oz of down fill weight. 9.7 x28 grams =271.6 grams so Snorske claim of 275 grams is not the weight of the down or a reflection of the warmth. So according to my research and numbers thats but 93.8 grams of actual down fill. In comparison TNF Super Diez is a 900 fill down with 130 grams of actual down fill.

    Which jacket is warmer? The Arc'teryx Cerium LT or the Arc'teryx Thorium AR?

    Tomothy,



    For the most part the jackets will be fairly similar but looking into the details, here is a break down of the finer points:



    Thorium AR (down): 750

    Cerium LT (down): 850



    Thorium AR (fill weight): 3.5oz

    Cerium LT (fill weight): 3.35oz



    Thorium AR (Synthetic insulation): 80/140grams

    Cerium LT (Synthetic insulation): 80/100grams



    So after looking at the breakdown of the insulationthe Thorium will have more insulation in it but in the case of the down it'll be slightly lower quality (but really 850 to 750 isn't a huge difference).



    I'd look at how you want the jacket to fit since the Thorium AR is an "athletic" fit and the Cerium LT is going to be a snugger fit due to it being a "trim" fit.



    Shoot me an email anytime you have questions!



    Jared D.

    Expert Gearhead

    801.736.4336

    jdowns@backcountry.com

    Thorium has more of a square cut and the Cerium has more of a trim fit. The Arc store rep had the same basic take as Jared (gear Expert) above did that they are more or less the same warmth, so it's more or less the cut you prefer.



    I'm 185 lbs 5'11 and like a snug coat and the medium in the thorium was good for me, but for the Cerium i'm going to go with the large. hope that helps

    What is the best size for me - I've heard the Cerium LT is a trim fit. This would be worn as a base layer. I'm 5'8", 140lbs, 37-38" chest with 31" waist and hips. I have an Arcteryx Alpha SV size small which has plenty of room for layering up under it but as I understand it the Cerium LT is a whole other fit altogether. Thanks

    Honestly i think you should look at the small. I am similar size (a bit larger) and went with the medium initially and found that the jacket just wasn't that warm. Wind would blow right up the back. With the small, i didn't lose any freedom of movement, but gained a lot of warmth as the hem of the jacket worked the way it was designed.

    I'm 5'10 and my current weight is 180 I want to layer up under this jacket for NYC winters what's your best recommendation for a comfortable fit medium or large?

    Since it has a trim fit I would get the large to make it comfortable. You could probably fit into a medium but, it might be snug especially when you layer underneath it. What is your chest measurement? That is a really good indicator of how the jacket will fit.



    If you have anymore questions feel free to send me an email or call!



    Bill Porreca

    bporreca@backcountry.com

    801-736-6398

    Michael -

    Just tried on the Medium and the Large at the store. I'm basically the same dimensions as you and the Large fit perfectly over an undershirt and a regular fit button up shirt. The medium was form fitting, but a bit tight in the sleeves.



    I also tried on the Thorium AR Down which is a more of a regular fit/square cut and the Medium version of that was more roomy than the Large in the Cerium.

    Are these made in China? I just got one on ebay for a deal and it says "Made in China." However, a search of the web shows that apparently a lot of Arcteryx goods are made in China. I just want to confirm as I'm returning the ebay purchase and planning to re-buy the jacket here, assuming it's not made in China. (And assuming the size is right. Everything I read about these jackets said they run small so I bought a large, but it's huge on me.)

    Hello, I'm torn between getting this jacket and L.L. Bean's Ultralight 850 Down Hooded Jacket. Does anyone have experience with both so that they can compare them together?

    I just received my LL Bean Ultralight and love it (was told it was back ordered to June 1). Very light, has Pertex shell, inside skins pocket and zip pocket that the whole jacket packs into and 3 outside zippered pockets. Got it on sale for about $170. I am 6'1, 195 and fit nicely in a Medium Tall. Nice fit. We'll see how it holds up but has a lot of features for the $.

    Which is warmer, Cerium LT or Western Mountaineering Flash XR? Also, which is smaller when compressed?

    I will be wearing one of these under a softshell jacket during multi-day alpine climbing in winter Alps.

    I'll ask what's gonna be warmer n last longer this or the Patagonia down sweater

    Hey everyone--quick question.



    I have a hard shell (barely insulated) and a solid fleece. I was hoping to get a light-weight down jacket to layer with, or wear alone conditions permitting. I hike (nothing too intense) 1-2x/month when I can get free. I'm looking to buy a down jacket that I can use to stay warm up in Boston, both when I'm just getting around and also when I get to hike.



    My question is this: is there a reason to get, or not get, this jacket with a hood? I don't really imagine too many times where I'd use the hood, but I'm not really sure. The price difference isn't a big deal if there's something I'm missing. Ideally, I'd like to wear this with a shirt or light baselayer to get around, so maybe having a hood around helps in case it get's wet, but then, I would want a shell regardless for the down, no?

    Best Answer

    Yes if it is raining you will want a shell. It's a personal preference but I tend to find most people like hoodless for a mid layer piece and the hood when wearing as a stand alone. However, depending on your shell a hood will not work on certain types jackets necks. I personally only have hooded pieces but all of my shells have storm hoods.



    If you want to discuss this or any other down jacket we carry, you can hit me up at 1-800-409-4502 ext 4420 or kbrady@backcountry.com

    Im 5'6 and 160lb with a chest size of 39"....

    Im 5'6 and 160lb with a chest size of 39". I'm guessing the medium would suit, but I'm considering the small due to not wanting excessive length in the arms. Any recommendations?

    I have an Atom SV but I am after something...

    I have an Atom SV but I am after something a little warmer for an insulation layer.



    Will the Thorium be warmer than the Atom SV?

    Anyone using this with a pack? I know its...

    Anyone using this with a pack? I know its designed as a mid layer, but anyone have any wierdeness where the straps of the pack rub? just curious

    Best Answer

    Tester,

    I am assuming by "wierdness" you are referring to fast wear in the shoulder area. I typically wear my Cerium as an outer layer rather than a midlayer, and often with a decent sized pack. While the Cerium's fabric is necessarily light weight I have been impressed with out how sturdy it is. No signs of wear to the shoulders or anywhere else for that matter.



    If someone is concerned about durability I would probably favor choosing the Thorium which has a 40D face farbic compared to 20D in the Cerium. The increased weight is not too substantial from Cerium to Thorium. But again, I have not seen any issues with durability in the Cerium anyway.

    this jacket is so light i find it hard to...

    this jacket is so light i find it hard to believe it will keep me warm so let see how it works: it's about 20 outside right now with a very slight windchill to 17. Having gone out for a tester walk around the block, in just a Tee, i can feel some air get in from the cuffs since it's only elastic. i can also say this jacket lets the NorthEast winter cut right through. If i had a warmer base layer, maybe it'd be OK.

    I cannot seem to find something that works - everything seems to be Light Weight. I tried the Marmot Guide Hoody but didn't find it warm either. What's a good jacket between this ArcTeryx & the LLBean Ascent with Windstopper?

    Best Answer

    PL,

    You have a fantastic jacket on your hands there but it is important to recognize its intended purpose and potential limitations. As the LT in the name denotes, this is designed to be a high quality lightweight down jacket. You can wear it as an outer layer during clement conditions, but in harsher wind and snow I would definitely layer it under an outer shell. This jacket does not claim to have any sort of windblocking membrane. If you are looking for a down jacket that can stand alone in the harshest of conditions I would suggest the Arc'teryx Therme Parka.

    Hi PL, I think your best bet is going to be something that has both baffled down and a wind-blocking exterior. The Cerium is quilted, meaning that the horizontal pockets that hold the down are sewn through both sides--a baffled down coat uses what essentially is mosquito netting to suspend the down on the inside and create a jacket without any cold spots. I would recommend something like the Marmot Shadow, which is warm, baffled, windproof, and comfy too. Check it out here:



    http://www.backcountry.com/marmot-shadow-jacket-mens?ti=U2VhcmNoIFJlc3VsdHM6bWFybW90IHNoYWRvdzoxOjE6bWFybW90IHNoYWRvdw



    Hope this helps!

    i think the shadow is a great recommendation, but i would like to make a different point. unless you already have a great waterproof jacket, you can save money and buy a shell to layer over your down jacket on wet and windy days, and wear alone with the mercury isn't too low. also, it doesn't sound like you'd like any light weight insulated jackets, so look for jackets in the 2 pound and up range to get lots of warmth. the trade off is they'll be bulkier.

    6'0" 165lbs, thin and athletic build. Tried...

    6'0" 165lbs, thin and athletic build. Tried the Patagonia down sweater in medium and felt I needed 30 more lbs on my chest to fill out the empty space. Jacket length and arm length were perfect though....going to return and look for something better fitting.

    Recommend a medium for this jacket?

    Would it be safe to say that a large cerium...

    Would it be safe to say that a large cerium lt should fit like a medium thorium ar? I am 5"10 175lbs and my shoulders and chest are broad. I tried the beta lt in medium and it was too tight around the back and shoulders... Should I size up in a cerium to be comfortable?

    Best Answer

    I don't mean to be redundant, but I think it may help other Backcountry customers interested in the Arc'Teryx down jackets to know that the Cerium LT is built according to Arc's Trim fit while the Thorium AR is built according to Arc's athletic fit which is just slightly more generous. I am close to Scott in size and can affirm that a large should fit you well in the Cerium while a medium would fit you the same in the Thorium.

    I just received my cerium jacket. I'm...

    I just received my cerium jacket. I'm 6'0" 195 lbs and purchased the large. It fits well EXCEPT I find the armpits to be uncomfortable because of the super athletic fit - it feels like you have a material bunched up under your arm when your harms are hanging down to your side. Has anyone else noticed this? Does it "stretch" or give a little over time to be less noticeable? At the moment, this is a deal breaker given the cost of the jacket - I want it to fit and feel well for $275. Thanks in advance.

    6'2" 200 pounds, I also have a Large. I have noticed the same thing, though I have not personally found it an annoyance. I do not think it will give over time (hasn't on mine). I would offer that the Arc's very athletic cut makes it more difficult for some folks to find a good fit with this jacket, body-type dependent of course.

    Between the Arc'Teryx Cerium LT hoodie and...

    Between the Arc'Teryx Cerium LT hoodie and Feathered Friends Daybreak hoodie, which jacket would be the better choice?

    If you are counting your bucks, the the Feathered friends is quite less expansive.

    However, i believe Arc'Terix is more experienced at making down jackets. The Arc'Terix It's a 850 fill down, The feathered friends is supposed to be 900 fill, however people have been reporting that some of them are actually 850 fill...I don't think it does really matter at this level.

    The Arc'Terix has also a nicer look.



    I would go for the Arc'Terix

    Best Answer

    hegaveitall is correct; in no way is Arc'teryx more experienced with down garments, the Thorium and Cerium are Arc's first efforts. That being said, both jackets are superb.



    Feathered Friends has a near-impeccable reputation for their quality and warmth. I would like to see exactly where "people are reporting" they use 850 instead in the Daybreak, that sounds like hooey to me.



    The Cerium has 97g of down vs. 89.5 for the Feathered Friends. Given the $75 price difference, the choice is yours.

    Get the Arcteryx.



    Feathered Friends makes great sleeping bags , but in my experience, all of their clothing is cut really strange and runs about 3 sizes small. You might like it if you are a really small person with no torso, but you should probably try one on first.



    You can only tell so much by comparing specifications.



    Both jackets will use top-notch materials.



    The arcteryx piece will be perfectly cut and true to size.



    However, the fit of the Feathered Friends jacket might be more "esoteric" so you should probably try it before you buy it (or just get the arcteryx, which is a sure thing).



    Hope this helps.

    I spend a lot of the winter hiking in cold...

    I spend a lot of the winter hiking in cold wet (rainy wet) windy conditions. I have an Alpha SV and ordered the same size Atom SV Hoody because it's synthetic and synthetic works well in the winter conditions I described, but the front hem of the Atom SV Hoody was about two inches longer than the front hem of the Alpha SV shell. The back hem of the hoody was a perfect match for the shell and all this seemed odd. A rep at arcteryx verified this and recommended the thorium or cerium jacket. It's seemed odd it didn't fit because the Atom LT Hoody fits under the Alpha SV shell perfectly, but here's the question. In the really rainy, very windy and cold winter conditions of the southern Cascades, how well would the Thorium or Cerium jackets work? I hike substantial distances and wouldn't want to carry back a lumpy wet down jacket or get soaked. Ah the beauty of synthetics....